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5-25
CCD-TRV107/TRV108/TRV308/TRV408/TRV608
2. VCO Adjustment (PD-156 board)
Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.
Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 8 of CN5502 (XHD OUT)
Measuring Instrument
Frequency counter
Adjustment Page
7
Adjustment Address
43
Specified Value
f = 15734 ± 30Hz
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
7
43
Change the data and set the VCO
frequency (f) to the specified value.
frequency (f) to the specified value.
3
7
43
Press PAUSE button.
4
0
01
00
Set the data.
3. RGB AMP Adjustment (PD-156 board)
Set the D range of the RGB decoder used to drive the LCD to the
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
Set the D range of the RGB decoder used to drive the LCD to the
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN5502 (VG)
External trigger: Pin 4 of CN5502
(PANEL COM)
External trigger: Pin 4 of CN5502
(PANEL COM)
Measuring Instrument
Oscilloscope
Adjustment Page
7
Adjustment Address
46
Specified Value
A = 3.62 ± 0.05V
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
7
46
Change the data and set the
voltage (A) between the reversed
waveform pedestal and non-
reversed waveform pedestal to the
specified value.
(The data should be “00” to “3F”.)
voltage (A) between the reversed
waveform pedestal and non-
reversed waveform pedestal to the
specified value.
(The data should be “00” to “3F”.)
3
7
46
Press PAUSE button.
4
0
01
00
Set the data.
Fig. 5-1-16.
Pedestal
Pedestal
A
2H
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